ǰλãҳ > 黑龙江省哈尔滨市第三中学2019届高三第一次模拟理综物理试?- 百度文库
2019еһģۺϲ
ѡ(8С,ÿ6ֵ14~17ֻһĿҪ,18~21жĿҪȫѡԵĵ6,ѡԵȫĵ3,дѡĵ0) 14.˵ȷ( )
A.ʿӻ۵
B.̽ʵʹʵ鷨
C.ķԭӵĺʽṹѧ˵,¬ɪæɢʵ֤ D.ţٷɲӦ÷ŴG
15.ABͬһصͬʱͬһֱ˶,ǵٶȵƽ(v2)λ(x)ı仯ͼʾ,жȷ( )
A.AļٶȴСΪ4m/s2
B.ABx=4mٶȴСΪ22m/s
C.ӿʼAֹͣǰ,xA=4mʱABԶ D.ӿʼAֹͣǰ,xA=6mʱABԶ
16.ͼʾ,Ϊȵбcˮƽ,ԵСbھԵб,ͨԵϸ⻬ĶСa,bһϸбƽСaڿռֱµǿ糡,糡ǿӵ,abcھֹ״̬,( ) A.bcĦһС B.cĦһС C.cĦһ
D.bcĦƽбһֱ
17.ռһx᷽ľ糡,Ʀx仯Ĺϵͼʾ,˵ȷ( )
A.x,0ԶȽͺ,ǿȼС
B.0~x1֮λþֹͷ(x1)ܵ糡,Ҽ,Ҽ,ٶΪ C.x1λóǿС,СΪ0
D.ͼʾx2糡ǿȷ෴
18.ҹ϶ĺ201913½,ʷϵ״½Ϊȫ̽·Ϊ
˱ֵ϶ĺŵͨ,ҹ2018521,һŵмǡȵš䵽¹յL2,ǿԼΪL2ڵͬƵԲ˶ʼ¹,֪MĵL2ΪrΪGתT,˵ȷ( ) A.мǡȵšٶȴƵתٶ B.мǡȵšٶСƵתٶ C.мǡȵšļٶΪa?GM 2r4?2D.мǡȵšļٶΪa?r 2T19.ͼΪmĿΪʵAB㹻һɺԵĹ⻬,Aֱab,ab˹⻬㹻,ֵab˵ĴֱΪL=0.123m,ʼʱAϸֱֱ,ͬʱɾֹͷAB֮˶Bʼδ
2
ִ߶(ִСƣ,g=10m/s)˵ȷ( )
A.ABϵͳеغ
B.BĻеټ C.ABϵͳһֱ
D.OAֱнΪ37ʱ,vA=1m/s 20.ͼʾ,MһСѹ,abȶҽ,ѹҲಿе㶨ͬСL1L2R,е,PϻʱU2ΪV2ʾ,I2ΪA2ʾ,˵ȷ( )
A.A1ʾ,A2ʾ,A3ʾ B.V1ʾ,V2ʾС C.
?U2С ?I2D.LL2
21.ͼ⻬efghɿխ,
費,бˮƽù⻬Ե(ȿɺ,AB˴ʱܲ)ˮƽб춼дֱƽǿų,ŸӦǿȴСΪB,ͼʾegΪLֵΪRĵ,hΪ2L,ABL,CD2L,Ϊm,Ϊr,бˮƽнΪȡֵABɾˮƽHߴֹͷ(H㹻)ABCD˶뵼Ӵòʼմֱ(emgn㹻,ABԽmn,ٶg),( ) A.AбٶΪv0?mgsin?R?r 22BLB.ͷŵȶ,ͨRϵĵΪq?RLBH
(R?r)sinC.CDٶΪvCD?2mgsin?(R?r) 225BL2mgsin?(R?r)
3B2L2D.ABٶΪvAB?ڢ(ѡ)
ѡ(ؿѡֵ22~25Ϊؿ,ÿ𡣵33~34Ϊѡ,Ҫ (һ)ؿ
22.(5)ʹͼʾ浼װýʵٶaG1G2Ϊ,ּʱ,Mͨ
G2ʱ,ڵʱt1G1t2
Ա¼ƬΪd,żΪs,ش:
(1)ͨG1ٶΪ (dt1ʾ)
(2)ļٶa= (dst1͡t2ʾ) 23.(10)ⶨڵʵб: A.G(0~10mA)
B.A(0~15mA,) C.R/(0-999)
D.R1(ܵԼ200,2.0A) E.R2(ܵԼ1000,2.0A) F.ԴE1(綯ԼΪ8V,) G.ԴE2(綯ԼΪ25V,) H.
ͼʾĵ·ⶨGrg
(1)ϱõ,RӦѡ ԴӦѡ (ǰĸ)
(2)յ·ԭͼʵӳʵ·,ʼʱϿ
(3)Ҫʵ鲽裺 ٽRֵ,պϵS1,ڻRֵ,ʹGﵽ̶Ȳ¼Aֵ
ڱպS2,ͬʱڻֵʹAֲֵ,GĶﵽƫ
/
۶RĶ(ͼʾ)rg= ,ַĵrgʵֵ (ѡƫ ƫСȡ)
24.(14)⻬ˮƽһM2kgľٶv0=10m/s˶,t=0ʱʩһĺF=8Nt=lsʱ,һm=2kgΪʵСٶΪľҶˡľ䶯Ħ=0.4,ľ㹻:(1)շСʱľٶ?(2)ľľ廬ʱ?
25.(18)ͼ,ƽֱϵxoyڴyḺǿ糡,ڵڴڷֱֽԲıO'(2h,-2h),뾶R=2hԲнǿųһΪm,Ϊ+q,v0yy=3hA㴹ֱyһx=2hCнų,ڴųƫת900ų(ơ
cos15?06?42cos300?3cos600?1)
22:(1)糡ǿE; (2)ӽųеٶvĴС ; (3)ŸӦǿB
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